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Casio fx-991ES Plus Scientific Manual Calculator fx991es fx 991 es Solar Battery

ALL IN ONE SHOP
  • (8470)
US $30.35
or Best Offer
Condition:
New
5 available / 45 sold

Additional service available

This one's trending. 45 have already sold.
Breathe easy. Returns accepted.
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Located in: DASNA, UTTAR PRADESH, India
Delivery:
Estimated between Tue, May 21 and Tue, Jun 25 to 43230
Estimated delivery dates - opens in a new window or tab include seller's handling time, origin ZIP Code, destination ZIP Code and time of acceptance and will depend on shipping service selected and receipt of cleared paymentcleared payment - opens in a new window or tab. Delivery times may vary, especially during peak periods.
Please note the delivery estimate is greater than 12 business days.
Please allow additional time if international delivery is subject to customs processing.
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eBay item number:133373548982
Last updated on Mar 29, 2024 00:22:11 PDTView all revisionsView all revisions

Item specifics

Condition
New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ...
Modified Item
No
Country/Region of Manufacture
India
Custom Bundle
No
Features
s
Display Size
Regular
Brand
Casio
Key Size
Regular
Type
Scientific
Power Source
Battery/Solar
Size
Handheld
Model
FX-991ES Plus
MPN
FX991MS/ES

About this product

Product Information

Easily compute the most complex of mathematical problems, equations, and scientific formulae with the Casio FX-991ES Plus scientific calculator. The Casio 991ES calculator works with a dual power source, the primary being a built-in solar power cell that keeps it running for hours without any batteries. Moreover, with batteries installed, you can safely use it for weeks together without worrying of replacing them. You can practice all sorts of mathematical problems that appear at the GCSE, A Levels and above, with this Casio FX-991ES Plus scientific calculator. The Casio 991ES calculator resolves complex calculations, integrations, and logarithms in just a few steps.

Product Identifiers

Brand
Casio
MPN
FX991MS/ES
UPC
4971850182276
Model
FX-991ES Plus
eBay Product ID (ePID)
92844524

Product Key Features

Power Source
Battery/Solar
Size
Handheld
Key Size
Regular
Type
Scientific

Additional Product Features

Display Type
Large

Item description from the seller

ALL IN ONE SHOP

ALL IN ONE SHOP

97.6% positive feedback
74K items sold
Visit storeContact
Joined Dec 2019

Detailed seller ratings

Average for the last 12 months

Accurate description
4.9
Reasonable shipping cost
5.0
Shipping speed
4.9
Communication
5.0

Seller feedback (9,505)

s***b (274)- Feedback left by buyer.
Past 6 months
Verified purchase
THANKYOU ! Book was new, just as described, at a good price, It was Shrink wrapped and arrived in only a few days, in perfect condition. I will definitely buy from this seller again.
i***i (76)- Feedback left by buyer.
Past 6 months
Verified purchase
Book was new, just as described, at a good price, It was wrapped in plastic and arrived in only a few days. The book was undamaged, in perfect condition, in quality shipping packaging. I will definitely buy from this seller again.
g***a (139)- Feedback left by buyer.
Past month
Verified purchase
Great Seller. The book arrived today, new as described and very carefully wrapped. Good Price; Good Delivery Time. Thank You. I can't wait to read it.
See all feedback

Product ratings and reviews

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Write a review
4.8
207 product ratings
  • 186 users rated this 5 out of 5 stars
  • 13 users rated this 4 out of 5 stars
  • 1 users rated this 3 out of 5 stars
  • 0 users rated this 2 out of 5 stars
  • 7 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

See all 120 reviews
  • by hendersonnh
    May 18, 2020Top favorable review

    Equation Solver

    I bought the Casio FX-991 ES. Fantastic for using Newton's law of approximation to solve equations like sinδ = a + bcos(δ + β) (a, b, β constants). Just substitute the ANS key for δ in the equation and keep hitting the "=" button till the answer doesn't change (converges).

    Verified purchase: YesCondition: NewSold by: discountwatch-llc

  • by twilliams9279
    Mar 14, 2011

    Easy to Use

    I bought this calculator because it was the best allowed for use on my exams (best in terms of its features and capablities). The "pretty print" font feature is great too. It can even perform integration and differentiation of a function at a specific value of the independent variable (or over a specified nonvariable range. Unfortunately, it can't produce the function that is the derivative, etc. of a given function like the TI89 (but then if it could it probably wouldn't be allowed on your exam anyhow). Anyway, this thing is pretty decent for calculus and physics - for stats, use a TI83 instead if you can. It is more than adaquate for business types and decent for science students too assuming your professor is against more advanced models. Engineers already know they'll be needing ...

  • by aguyonthebuy
    Sep 04, 2018

    Best Simple Display Calculator I've Used

    Best non graphing calculator for engineering courses I've used. Best part is being able to plug in human readable fractions.

    Verified purchase: YesCondition: NewSold by: ahmed1164

  • by sousabaye
    Jan 28, 2017

    Precise with great features

    I'm a student and this calculator helps me a lot to accomplish the math exercises required by class. Many functions are included, more than I will need actually but I loved the design, the big screen, the price and the ease of use.

    Verified purchase: YesCondition: NewSold by: ahmed1164

  • by helius619
    Sep 29, 2020

    Great for Digital Systems Design

    I recommend this model for CS studies and Electrical Engineering. It's real easy to calculate in non decimal base: base 2 8 and 16 and to convert it back to decimal. I think there are calculator models with a more robust screen. I guess that's why it's relatively cheap

    Verified purchase: YesCondition: NewSold by: easystreet_hangout

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